CH-1708
Electroplating
Chemistry · Secondary 4 · Medium · Electroplating
During electroplating, a spoon is coated with copper using an aqueous solution of copper(II) sulfate.
After some time, which statement about the anode is correct?
After some time, which statement about the anode is correct?
- The spoon is the anode so it dissolves.
- A copper strip is the anode and it dissolves, supplying Cu^{2+} ions.
- A graphite anode is used and gains mass as copper plates on it.
- The anode remains unchanged during electroplating.
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